Here's one of Mac's 25-06 targets, he shot the Win Supreme ammo in his. I can't find one of my targets, but it shoots the first two touching and the 3rd opens the group to about 1", I tried the O-ring and pressure point, but it didn't help that 3rd shot, since it's not a colony round for me shooting P'dogs, that 3rd shot "flyer" is of no concern, it consistently shoots the first two touching or close to it from a cold clean barrel, so I left it that way and I hunt with it just the way it is, tis good enough for me with factory ammo! I have some 115gr CT Ballistic Silvertip handloads made up for it, but have yet to shoot them.
I also have a couple 270 Ultracomps, a 30-06 Ultracomp and a stainless 30-06 and a bull barrel 308 Ultra, they all shoot right at 1" groups consistently with handloads and some factory ammo, that being the Federal Fusion, I have yet to try it in anything that it didn't shoot well in, haven't tried the 25-06 ammo yet tho.
Tim